A school nurse is assessing a child who has diabetes mellitus. Which of the following findings should the nurse identify as a manifestation of hypoglycemia?

A. Return in two weeks for a follow up MRI: Clients with an implantable cardioverter/defibrillator (ICD) should generally avoid MRI unless the device is specifically labeled MRI-compatible. Magnetic fields can interfere with the ICD’s function and pose serious risks.
B. Wear loose-fitting clothing: Loose clothing prevents friction or pressure over the ICD insertion site, which promotes comfort and reduces the risk of irritation or infection during the healing period after implantation.
C. Expect to have a rapid pulse rate for the first few weeks: A rapid pulse is not an expected finding after ICD placement. If it occurs, it could indicate arrhythmia or improper device function, and should be evaluated promptly.
D. Resume tub baths and swimming after 24 hr: Immersing the incision site in water within 24 hours increases the risk of infection. Clients are typically advised to avoid submerging the area until the incision has fully healed, usually after 2-4 weeks.

A. Muscle weakness: Hyperkalemia disrupts normal muscle cell function by affecting membrane excitability, leading to symptoms like muscle weakness or even paralysis in severe cases. It is one of the hallmark signs of elevated potassium levels.
B. Oliguria: While hyperkalemia may be associated with renal impairment, oliguria is not a direct manifestation of high potassium but rather a possible contributing factor. It is not specific to hyperkalemia itself.
C. Hypoactive bowel sounds: Increased potassium levels typically cause hyperactivity of the gastrointestinal tract, leading to hyperactive bowel sounds and cramping, not reduced or hypoactive activity.
D. Hypertension: Hyperkalemia more commonly results in hypotension due to its effects on cardiac conduction and vasculature. Hypertension is not a typical manifestation of elevated serum potassium.